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| Soufivand, Anahita Ahmadi |
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| Fearraigh, B. Ó. |
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| Bhaswant, Maharshi |
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| Mouni, Lotfi |
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| Ghosh, Angsula |
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| Romero Resendiz, Liliana |
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| Mendesfelipe, Cristian |
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| Golias, Evangelos | Lund |
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| Pons, Tony |
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| Ferreira, Saulo Rocha |
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| Sanguineti, M. |
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| Ziegler, Andreas |
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| Zhang, Kailun |
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| Höfer, Philipp |
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| Zhengis, Arshyn |
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| Danelon, Miguel R. |
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| Baral, P. |
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| Beltrán, Ana M. |
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| Vippola, Minnamari | Tampere |
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| Perna, Alessia Serena | Naples |
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| Larsson, Henrik | Stockholm |
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| Kpemou, A. M. |
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| Le Gall, Alice |
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| Matteo, Pietro Di |
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| Kojouri, Ali Shivaie |
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Motta, Antonella
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Publications (8/8 displayed)
- 2025Optimising β-Ti21S Alloy Lattice Structures for Enhanced Femoral Implants: A Study on Mechanical and Biological Performancecitations
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- 2022Microfluidic-assisted electrospinning, an alternative to coaxial, as a controlled dual drug release system to treat inflammatory arthritic diseasescitations
- 2022Development of alginate-based hydrogels for blood vessel engineeringcitations
- 2021Speedy bioceramics: Rapid densification of tricalcium phosphate by ultrafast high-temperature sinteringcitations
- 2021Horseradish Peroxidase‐Crosslinked Calcium‐Containing Silk Fibroin Hydrogels as Artificial Matrices for Bone Cancer Researchcitations
- 2019A Thermal‐Reflow‐Based Low‐Temperature, High‐Pressure Sintering of Lyophilized Silk Fibroin for the Fast Fabrication of Biosubstratescitations
- 2016Fabrication of anisotropically aligned nanofibrous scaffolds based on natural/synthetic polymer blends reinforced with cellulose nanocrystals for tendon tissue engineeringcitations
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document
Optimising β-Ti21S Alloy Lattice Structures for Enhanced Femoral Implants: A Study on Mechanical and Biological Performance
Abstract
The metastable β-Ti21S alloy exhibits a lower elastic modulus than Ti-6Al-4V ELI while maintaining high mechanical strength and ductility. To address stress shielding, this study explores the integration of lattice structures within prosthetics, which is made possible through additive manufacturing. Continuous adhesion between the implant and bone is essential; therefore, auxetic bow-tie structures with a negative Poisson’s ratio are proposed for regions under tensile stress, while Triply Periodic Minimal Surface (TPMS) structures with a positive Poisson’s ratio are recommended for areas under compressive stress. This research examines the manufacturability and quasi-static mechanical behaviour of two auxetic bow-tie (AUX 2.5 and AUX 3.5) and two TPMS structures (TPMS 2.5 and TPMS 1.5) in β-Ti21S alloy produced via laser powder bed fusion. Micro-CT reveals printability issues in TPMS 1.5, affecting pore size and reducing fatigue resistance compared to TPMS 2.5. AUX 3.5’s low stiffness matches cancellous bone but shows insufficient yield strength and fatigue resistance for femoral implants. Biological tests confirm non-toxicity and enhanced cell activity in β-Ti21S structures. The study concludes that the β-Ti21S alloy, especially with TPMS 2.5 structures, demonstrates promising mechanical and biological properties for femoral implants. However, challenges like poor printability in TPMS 1.5 are acknowledged and should be addressed in future research.